Find the distance between the following pairs of point:`Q(3,2,-1)a n d\ B(-1,1,-1)dot`

Explanation

Given that,
two purpose `Q(3,2,-1) and B(-1,1,-1)`
We have to find the distance between these two purposes.
the distance between any two purposes `Q(a,b,c) and B(k,l,m)` is given by,
`sqrt((a-k)^2+(b-l)^2+(c-m)^2)`
so, accordingly the distance between`Q(3,2,-1) and B(-1,1,-1)`is,
`=sqrt((3+1)^2+(2-1)^2+(-1+1)^2)`
`=sqrt((4)^2+(1)^2+(0)^2)`
`=sqrt(16+1)`
`=sqrt(17)`
so, the distance betwwn these two purposes is calculated by `sqrt(17)`
`(:( x-2,x gt 2),(2-x,x lt 2):)`